CN106289798B - A kind of steam turbine speed-regulating system comprehensive tester quick calibrating method - Google Patents
A kind of steam turbine speed-regulating system comprehensive tester quick calibrating method Download PDFInfo
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- CN106289798B CN106289798B CN201610593787.6A CN201610593787A CN106289798B CN 106289798 B CN106289798 B CN 106289798B CN 201610593787 A CN201610593787 A CN 201610593787A CN 106289798 B CN106289798 B CN 106289798B
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- steam turbine
- regulating system
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- turbine speed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- General Physics & Mathematics (AREA)
- Control Of Turbines (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention provides a kind of steam turbine speed-regulating system comprehensive tester quick calibrating method, solves the disadvantage that ear listens the objectivity of range estimation judgement poor and not energetic, it includes the following steps: to install detection device on steam turbine speed-regulating system comprehensive tester, and detection probe is arranged on signal generator；Two detection probes are connect with the probe of steam turbine speed-regulating system comprehensive tester respectively；It is powered on to signal generator and parameter is set；The forward-propagating waveform for issuing signal to signal generator measures；Steam turbine speed-regulating system comprehensive tester and signal generator are accessed into Steam Turbine, test the delay in each circuit of Steam Turbine；Same signal is sequentially ingressed into each need measuring point to be used of steam turbine speed-regulating system comprehensive tester, analyzes the measured deviation of each measuring point；Analysis of test results is carried out, abnormal phenomenon occurs to measurement and analyzes, if it is necessary to which the above testing process can be repeated several times, until finding questions and prospect and solving.
Description
Technical field
The present invention relates to a kind of steam turbine speed-regulating system comprehensive tester quick calibrating methods.
Background technique
Steam turbine speed-regulating system comprehensive tester is developed so far, and has many advantages, such as that measurement method is simple and measuring accuracy is high, and one
It is directly concerned, such as application No. is 200920016099.9 Chinese patents.
Steam turbine speed-regulating system comprehensive tester measures image as shown in Figure 1, measurement accuracy is higher as seen from the figure.
Steam turbine speed-regulating system comprehensive tester can test unit steam turbine in the case where unit is static and under current intelligence gets rid of negative
Lotus test, steam turbine is static, dynamic OPC is tested, the test of steam turbine porthole shut-in time, extracted steam from turbine non-return flap shut-in time
Whether test, steam turbine performance test, parameter actual measurement (system modelling) test work normally, can be by multiple when occurring abnormal
Reason is searched in detection, and help is debugged to be solved the problems, such as with maintenance personnel.
Steam turbine speed-regulating system comprehensive tester frequency is generally 50KHZ, and 0.16 millisecond of signal resolution.
The valve oil cylinder shut-in time of new unit only has a few tens of milliseconds, thus the survey to steam turbine speed-regulating system comprehensive tester
Accuracy of measurement is more demanding, and steam turbine speed-regulating system comprehensive tester, which is often consigned, goes inspection center's verification that will increase many fund costs
And time cost, work is seriously affected, it is very inconvenient.
Field adjustable and maintenance personnel mostly use human ear to pass through sound and range estimation greatly judge steam turbine speed regulation system at present
The measured deviation of system comprehensive tester, ear listen range estimation to judge that the method for the measured deviation of steam turbine speed-regulating system comprehensive tester is deposited
Several disadvantages below:
1, ear judgement has certain subjectivity, and for individual, and the quality of hearing deposits the result of detection
In error.
2, ear judgement is unable to the feature of quantized signal.
3, qualitative can only estimate, it can not Accurate Prediction measured deviation.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of reasonable steam turbine of design
Speed-regulating system comprehensive tester quick calibrating method solves the disadvantage that ear listens the objectivity of range estimation judgement poor and not energetic.
Technical solution used by the present invention solves the above problems is: a kind of steam turbine speed-regulating system comprehensive tester is quickly marked
Determine method, characterized by the following steps:
Step 1 installs detection device on steam turbine speed-regulating system comprehensive tester, detection device include signal generator and
Detection probe, detection probe are arranged on signal generator；Detection probe is two, and two detection probes are adjusted the speed with steam turbine respectively
The probe of system integration testing instrument connects；
Step 2 powers on to signal generator and parameter is arranged；
Step 3, the forward-propagating waveform for issuing signal to signal generator measure, specifically includes the following steps:
Step 31, signal generator simulate dc switch amount signal and ac analog signal；
Step 32, two detection probes receive the signal that signal generator issues and pass to the comprehensive survey of steam turbine speed-regulating system
Try instrument；
Step 33, steam turbine speed-regulating system comprehensive tester are reminded if the signal for not receiving signal generator sending always
Commissioning staff searches reason；
After step 34, steam turbine speed-regulating system comprehensive tester receive the useful signal of signal generator sending, according to setting
Parameter is set, the forward-propagating waveform of signal is tested；
Step 35, the signal contrast issued according to the forward-propagating waveform and signal generator of test, calculate forward-propagating
Time analyzes the apparatus measures deviation of steam turbine speed-regulating system comprehensive tester；
Steam turbine speed-regulating system comprehensive tester and signal generator are accessed Steam Turbine by step 4, test steamer
The delay in each circuit of machine DEH system, specifically includes the following steps:
Step 41, signal generator simulate dc switch amount signal and ac analog signal；
Step 42, two detection probes receive the signal that signal generator issues, and pass to each of Steam Turbine
A circuit, then pass to steam turbine speed-regulating system comprehensive tester；
Step 43, steam turbine speed-regulating system comprehensive tester are reminded if the signal for not receiving signal generator sending always
Commissioning staff searches reason；
After step 44, steam turbine speed-regulating system comprehensive tester receive the useful signal of signal generator sending, according to setting
Parameter is set, the forward-propagating waveform of signal is tested；
Step 45, the signal contrast issued according to the forward-propagating waveform and signal generator of test, analyze vapour in actual measurement
The delay in each circuit of turbine DEH system and the apparatus measures deviation of steam turbine speed-regulating system comprehensive tester；
Step 5, same signal are sequentially ingressed into each need measuring point to be used of steam turbine speed-regulating system comprehensive tester, analysis
The measured deviation of each measuring point；
Step 6 carries out Analysis of test results, abnormal phenomenon occurs to measurement and analyzes, if it is necessary to can be repeated several times
The above testing process, until finding questions and prospect and solving.
The apparatus measures deviation of steam turbine speed-regulating system comprehensive tester of the present invention is Millisecond.
The present invention is in steam turbine speed-regulating system comprehensive tester Fast Calibration, the error of discovery, in normal assays measurement
It needs to deduct error from overall time section.
Compared with prior art, the present invention having the following advantages that and effect: it is comprehensive that the present invention can solve steam turbine speed-regulating system
Tester improves detection efficiency the Commissioning field Fast Calibration the problem of, shortens detection process, and it is comprehensive to reduce steam turbine speed-regulating system
Tester calibration cost and maintenance cost improve steam turbine speed-regulating system comprehensive tester service efficiency, measurement when guarantee test
Precision.
Detailed description of the invention
Fig. 1 is the schematic diagram that steam turbine speed-regulating system comprehensive tester measures image.
Fig. 2 is the structural schematic diagram of steam turbine speed-regulating system comprehensive tester and detection device assembly of the invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Referring to fig. 2, the embodiment of the present invention includes following steps:
Step 1 installs detection device on steam turbine speed-regulating system comprehensive tester 4；Detection device includes signal generator
1, detection probe 2 and detection cable 3, detection probe 2 are arranged on signal generator 1；Detection probe 2 is two, two detections
The detection cable 3 of probe 2 is connect with the probe of steam turbine speed-regulating system comprehensive tester 4 respectively, it is ensured that contact is good, non-loosening.
Step 2 powers on to signal generator 1 and is arranged parameter, and signal generator 1 is enable to issue known dc switch amount
Signal and ac analog signal.
Step 3, the forward-propagating waveform for issuing signal to signal generator 1 measure, specifically includes the following steps:
Step 31, signal generator 1 simulate dc switch amount signal and ac analog signal, thus can be to steam turbine tune
Speed system comprehensive tester 4 is directly demarcated；
Step 32, two detection probes 2 receive the signal that signal generator 1 issues and pass to steam turbine speed-regulating system synthesis
Tester 4；
Step 33, steam turbine speed-regulating system comprehensive tester 4 mention if the signal for not receiving the sending of signal generator 1 always
The commissioning staff that wakes up searches reason；
After step 34, steam turbine speed-regulating system comprehensive tester 4 receive the useful signal of the sending of signal generator 1, according to
Parameter is set, the forward-propagating waveform of signal is tested；
Step 35, the signal contrast issued according to the forward-propagating waveform and signal generator 1 of test, calculate forward-propagating
Time analyzes the apparatus measures deviation of steam turbine speed-regulating system comprehensive tester 4.
After the completion of the subsequent analysis work all of the detection of step 4, above-mentioned steps, by steam turbine speed-regulating system comprehensive tester 4
With signal generator 1 access Steam Turbine, the delay in each circuit of test macro, specifically includes the following steps:
Step 41, signal generator 1 simulate dc switch amount signal and ac analog signal；
Step 42, two detection probes 2 receive the signal that signal generator 1 issues, and pass to Steam Turbine
Each circuit, then pass to steam turbine speed-regulating system comprehensive tester 4；
Step 43, steam turbine speed-regulating system comprehensive tester 4 mention if the signal for not receiving the sending of signal generator 1 always
The commissioning staff that wakes up searches reason；
After step 44, steam turbine speed-regulating system comprehensive tester 4 receive the useful signal of the sending of signal generator 1, according to
Parameter is set, the forward-propagating waveform of signal is tested.
Step 45, the signal contrast issued according to the forward-propagating waveform and signal generator 1 of test, analyze vapour in actual measurement
The delay in each circuit of turbine DEH system and the apparatus measures deviation of steam turbine speed-regulating system comprehensive tester 4.
Step 5, same signal are sequentially ingressed into each need measuring point to be used of steam turbine speed-regulating system comprehensive tester 4, point
Analyse the measured deviation of each measuring point；
Step 6 carries out Analysis of test results, abnormal phenomenon (can't detect signal) occurs to measurement and analyzes, if having
The above testing process can be repeated several times in necessity, until finding questions and prospect and solving.
The apparatus measures deviation for the steam turbine speed-regulating system comprehensive tester 4 that the present invention demarcates is Millisecond.
In steam turbine speed-regulating system 4 Fast Calibration of comprehensive tester, the error of discovery, normal assays measurement when need by
Error is deducted from overall time section.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.
Claims (3)
1. a kind of steam turbine speed-regulating system comprehensive tester quick calibrating method, characterized by the following steps:
Step 1 installs detection device on steam turbine speed-regulating system comprehensive tester, and detection device includes signal generator and detection
Probe, detection probe are arranged on signal generator；Detection probe be two, two detection probes respectively with steam turbine speed-regulating system
The probe of comprehensive tester connects；
Step 2 powers on to signal generator and parameter is arranged；
Step 3, the forward-propagating waveform for issuing signal to signal generator measure, specifically includes the following steps:
Step 31, signal generator simulate dc switch amount signal and ac analog signal；
Step 32, two detection probes receive the signal that signal generator issues and pass to steam turbine speed-regulating system integration test
Instrument；
Step 33, steam turbine speed-regulating system comprehensive tester remind debugging if the signal for not receiving signal generator sending always
People finder's reason；
After step 34, steam turbine speed-regulating system comprehensive tester receive the useful signal of signal generator sending, joined according to setting
Number, tests the forward-propagating waveform of signal；
Step 35, the signal contrast issued according to the forward-propagating waveform and signal generator of test, calculate the forward-propagating time,
Analyze the apparatus measures deviation of steam turbine speed-regulating system comprehensive tester；
Steam turbine speed-regulating system comprehensive tester and signal generator are accessed Steam Turbine by step 4, test steam turbine DEH
The delay in each circuit of system, specifically includes the following steps:
Step 41, signal generator simulate dc switch amount signal and ac analog signal；
Step 42, two detection probes receive the signal that signal generator issues, and pass to each time of Steam Turbine
Road, then pass to steam turbine speed-regulating system comprehensive tester；
Step 43, steam turbine speed-regulating system comprehensive tester remind debugging if the signal for not receiving signal generator sending always
People finder's reason；
After step 44, steam turbine speed-regulating system comprehensive tester receive the useful signal of signal generator sending, joined according to setting
Number, tests the forward-propagating waveform of signal；
Step 45, the signal contrast issued according to the forward-propagating waveform and signal generator of test, analyze steam turbine in actual measurement
The delay in each circuit of DEH system and the apparatus measures deviation of steam turbine speed-regulating system comprehensive tester；
Step 5, same signal are sequentially ingressed into each need measuring point to be used of steam turbine speed-regulating system comprehensive tester, analyze each
The measured deviation of measuring point；
Step 6 carries out Analysis of test results, abnormal phenomenon occurs to measurement and analyzes, if it is necessary to the above inspection is repeated several times
Flow gauge, until finding questions and prospect and solving.
2. steam turbine speed-regulating system comprehensive tester quick calibrating method according to claim 1, it is characterised in that: described
The apparatus measures deviation of steam turbine speed-regulating system comprehensive tester is Millisecond.
3. steam turbine speed-regulating system comprehensive tester quick calibrating method according to claim 1, it is characterised in that: in steam turbine
When speed-regulating system comprehensive tester Fast Calibration, the error of discovery is needed error in normal assays measurement from overall time
It is deducted in section.
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| JP2003227304A (en) * | 2002-02-04 | 2003-08-15 | Toshiba Corp | Turbine control device |
| CN1959067A (en) * | 2005-11-03 | 2007-05-09 | 沈阳创思达自动化系统有限公司 | Speed adjustment control system of steam turbine |
| CN201502410U (en) * | 2009-09-07 | 2010-06-09 | 上海宝钢设备检修有限公司 | Static debugging device of steam turbine speed control system |
| CN103089342A (en) * | 2011-11-04 | 2013-05-08 | 华北电力科学研究院有限责任公司 | Steam turbine and speed regulating system model parameter correcting method thereof |
| CN104063584A (en) * | 2014-06-10 | 2014-09-24 | 国家电网公司 | Control parameter setting method for steam turbine speed governing system |
| CN204807308U (en) * | 2015-07-03 | 2015-11-25 | 华电电力科学研究院 | Measure wireless device of steam turbine extraction check valve shut -in time |
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2016
- 2016-07-26 CN CN201610593787.6A patent/CN106289798B/en active Active
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|---|---|---|---|---|
| JP2003227304A (en) * | 2002-02-04 | 2003-08-15 | Toshiba Corp | Turbine control device |
| CN1959067A (en) * | 2005-11-03 | 2007-05-09 | 沈阳创思达自动化系统有限公司 | Speed adjustment control system of steam turbine |
| CN201502410U (en) * | 2009-09-07 | 2010-06-09 | 上海宝钢设备检修有限公司 | Static debugging device of steam turbine speed control system |
| CN103089342A (en) * | 2011-11-04 | 2013-05-08 | 华北电力科学研究院有限责任公司 | Steam turbine and speed regulating system model parameter correcting method thereof |
| CN104063584A (en) * | 2014-06-10 | 2014-09-24 | 国家电网公司 | Control parameter setting method for steam turbine speed governing system |
| CN204807308U (en) * | 2015-07-03 | 2015-11-25 | 华电电力科学研究院 | Measure wireless device of steam turbine extraction check valve shut -in time |
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| 汽轮机调速系统参数实测与仿真研究;刘遵义等;《河南电力》;20080630(第2期);第1-7页 |
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